EP2965735A1 - Befestigungslasche - Google Patents

Befestigungslasche Download PDF

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Publication number
EP2965735A1
EP2965735A1 EP14176556.0A EP14176556A EP2965735A1 EP 2965735 A1 EP2965735 A1 EP 2965735A1 EP 14176556 A EP14176556 A EP 14176556A EP 2965735 A1 EP2965735 A1 EP 2965735A1
Authority
EP
European Patent Office
Prior art keywords
fastening
absorbent article
adhesive
patch
fastening tab
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14176556.0A
Other languages
English (en)
French (fr)
Inventor
Egbert Von Jakusch
Joerg Tuschy
Peter Kitzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Innovative Properties Co
Original Assignee
3M Innovative Properties Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Priority to EP14176556.0A priority Critical patent/EP2965735A1/de
Priority to US15/324,811 priority patent/US20170196739A1/en
Priority to JP2017501019A priority patent/JP2017525425A/ja
Priority to CN201580037314.1A priority patent/CN106659619B/zh
Priority to MYPI2017000036A priority patent/MY176535A/en
Priority to PCT/US2015/039669 priority patent/WO2016007703A1/en
Priority to EP15739742.3A priority patent/EP3166554B1/de
Priority to MX2017000429A priority patent/MX2017000429A/es
Priority to BR112017000508-5A priority patent/BR112017000508B1/pt
Priority to KR1020177003338A priority patent/KR102416431B1/ko
Publication of EP2965735A1 publication Critical patent/EP2965735A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/58—Adhesive tab fastener elements
    • A61F13/581—Tab fastener elements combining adhesive and mechanical fastening
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/62—Mechanical fastening means, ; Fabric strip fastener elements, e.g. hook and loop
    • A61F13/622—Fabric strip fastener elements, e.g. hook and loop
    • A61F13/625—Fabric strip fastener elements, e.g. hook and loop characterised by the hook
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
    • A44B18/0003—Fastener constructions
    • A44B18/0011—Female or loop elements
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
    • A44B18/0003—Fastener constructions
    • A44B18/0015—Male or hook elements
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
    • A44B18/0003—Fastener constructions
    • A44B18/0015—Male or hook elements
    • A44B18/0019—Male or hook elements of a mushroom type
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
    • A44B18/0069—Details
    • A44B18/008—Hooks or loops provided with means to reinforce the attachment, e.g. by adhesive means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
    • A61F13/15723—Partitioning batts; Cutting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15756—Applying tabs, strips, tapes, loops; Knotting the ends of pads
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49003—Reusable, washable fabric diapers
    • A61F13/49006—Reusable, washable fabric diapers the reusable article being in the form of pants or briefs, e.g. slip or panty for light incontinence
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/5622—Supporting or fastening means specially adapted for diapers or the like
    • A61F13/565—Supporting or fastening means specially adapted for diapers or the like pants type diaper
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/58—Adhesive tab fastener elements
    • A61F13/60—Adhesive tab fastener elements with release means associated with tab fasteners
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/62—Mechanical fastening means, ; Fabric strip fastener elements, e.g. hook and loop
    • A61F13/622—Fabric strip fastener elements, e.g. hook and loop
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/62—Mechanical fastening means, ; Fabric strip fastener elements, e.g. hook and loop
    • A61F13/622—Fabric strip fastener elements, e.g. hook and loop
    • A61F13/627—Fabric strip fastener elements, e.g. hook and loop characterised by the loop

Definitions

  • the present application relates to fastening tabs for disposable, absorbent articles, fastening tapes and rolls of fastening tape including such fastening tabs as well as absorbent articles comprising fastening tabs and methods of manufacturing and using such absorbent articles.
  • absorbent articles such as diapers and incontinence briefs, are widely used not only in the sector of child care, but also for adults suffering from incontinence.
  • the absorbent articles are typically reclosable by fastening tabs that are generally easy to handle and provide reliable fixation.
  • fastening tabs either comprise an adhesive-based closure mechanism or a mechanical-based closure mechanism or a combination of both.
  • Fastening tabs relying on a mechanical closure mechanism typically comprise hook-like fastening elements whereby the tab is normally attached to the rear waist portion of the diaper or incontinence brief or, if applicable, to an ear thereof.
  • a large number of documents described such fastening tabs including among others for example EP 2 103 293 , WO 2000/013641 , and EP 2 055 283 .
  • the fastening tab is typically fastened to a landing zone provided on the front waist portion of the diaper or incontinence brief, respectively.
  • the landing zone typically comprises a surface with a loop material being adapted to engage the hooks of the fastening tab.
  • the provision of such a landing zone may be omitted, when the back sheet of the diaper or the incontinence brief is made of a material that is suitable to engage with hooks of the fastening tab or when the fastening tab includes a so-called loop-transfer element, where upon during initial use of the tab, a piece of loop-comprising material engaged to the hooks on the fastening tab is transferred from the tab onto the front portion of diaper or incontinence brief, as the case may be.
  • Documents describing loop-transfer tabs or tapes include among others US 5,383,872 , EP 1 449 505 and EP 1 000 598 .
  • a fastening tab comprising a proximal end and a distal end.
  • the proximal end comprises a backing including a first major surface and a second major surface, wherein said first major surface is provided with a release surface (such as a low surface energy film, a microstructured film, or a low adhesion backside coating), wherein the fastening tab further comprises a mechanical fastening patch, said patch comprising on one side male fastening elements and on the opposite side an adhesive, wherein the patch is releasably attached to the release surface via the adhesive.
  • the distal end comprises a backing including a first major surface and a second major surface, wherein said first major surface has a structure or is provided with a structure that is adapted to be engaged by said male fastening elements of the patch.
  • the width of the engaging-structure (e.g. having regard to the transverse direction of the tab from the proximal end to the distal end) is favorably at least 2 times greater than the width of the male fastening element comprising patch, more favorably the width of the engaging-structure is at least 2.5 times greater than the width of the of male fastening element comprising patch, most favorably the width of the engaging-structure is at least 3 times greater than the width of the of male fastening element comprising patch.
  • proximal and distal ends of the tab are configured and arranged such that at least a portion of one end (in particular the distal end) can be folded onto the other end (in particular the proximal end) so that said male fastening elements can releasably engage said engaging-structure.
  • the fastening tab is configured and arranged, such that the force to disengage the male fastening elements from the engaging-structure is higher than the force to detach the adhesive of the male fastening element patch from the release surface (such as a low adhesion backside).
  • the release surface e.g. a low adhesion backside
  • the force to detach the adhesive of the male fastening element comprising patch from the release surface will be typically low, thus facilitating the desirable configuration and arrangement towards a fastening tab where the force needed to disengage the male fastening elements from the engaging-structure will be higher.
  • the adhesive of the male fastening element comprising patch is favorably a pressure sensitive adhesive, more favorably pressure sensitive adhesives based on styrene-isoprene-styrene block copolymer/tackifier mixtures.
  • First adhesives may have a coating weight in the range of 20 to 50 g/m 2 .
  • First adhesive may have a thickness in the range of 20 microns to 60 microns.
  • the male fastening element patch will be moved from the tab to the absorbent article, such that the first adhesive will be adhered to a portion of the absorbent article, e.g. the front waist portion of a diaper or an incontinence brief.
  • the fastening tab is configured and arranged, such that the force to detach the first adhesive of the transferred male fastening element patch from the absorbent article is greater than force needed to disengage the male fastening elements from the engaging-structure.
  • forces needed to disengage common commercial "hook-and-loop" pairings are typically around 5 N /25 mm.
  • the first adhesive has a 90° peel adhesio n to a smooth polyethylene test surface having an average surface roughness value R a of about 1.4 ⁇ m and an average peak to valley height value R z of about 12.5 ⁇ m greater than 5 N/25 mm, in particular equal to or greater than 6 N/25 mm, more particularly equal to or greater than 7 N/25 mm e.g. as measured according to FINAT Test Method No.
  • the first adhesive favorably has a tack value to a smooth polyethylene test surface having an average surface roughness value R a of about 1.4 ⁇ m and an average peak to valley height value R z of about 12.5 ⁇ m equal to or greater than 5 N/25 mm, in particular equal to or greater than 6 N/25 mm, more particularly equal to or greater than 7 N/25 mm e.g. as measured according to FINAT Test Method No. 9 " 'Loop' tack measurement" in 5th Edition FINAT Technical Handbook (Test Methods) 1999 .
  • samples tested in the aforesaid peel adhesion and/or tack test method comprise the first adhesive as provided on the male fastening element comprising patch (e.g. first adhesive on one major surface of the sample to be tested and male fastening elements on the opposite major surface thereof).
  • the second major surface at the proximal end is provided at least in part with a second adhesive.
  • the second major surface at the distal end may also be provided at least in part with a third adhesive.
  • second and third adhesives are provided they may be identical or different.
  • the backing of the proximal end and the backing of the distal end may be either integral or two separate elements, wherein in the latter case the two separate elements are favorably connected to another via a connection member.
  • the male fastening elements are favorably selected from the group consisting of hook fasteners, mushroom-shaped fasteners, stem-shaped fasteners, cup-shaped fasteners, T-shaped fasteners and mixtures thereof.
  • the engaging-structure may comprise a structure selected from the group consisting of nonwoven structures, loops, mushroom-shaped fasteners, cup-shaped fasteners, T-shaped fasteners and mixtures thereof.
  • a fastening tape comprising a plurality of fastening tabs as described herein, wherein the fastening tabs are arranged in an endless form on the tape so that individual fastening tabs can be provided from the fastening tape by cutting the tape across its width.
  • a roll of such fastening tape there is a provided a roll of such fastening tape.
  • the proximal and distal ends of the fastening tabs are configured and arranged in the roll such that said male fastening elements are not engaging said engaging-structure.
  • the fastening tape is desirably rolled in a flat, unengaged (e.g. unfolded) configuration.
  • the proximal and distal ends of the fastening tabs are positioned favorably in two outer lateral regions of rolled fastening tape. This is advantageous in that across the width of the tape the overall height of the tape on the roll is relatively low (e.g. in comparison to known loop transfer tapes where the loop and hooks are typically provided in engaging (e.g.
  • the ends of the male fastening elements which are distal to the first adhesive are favorably positioned in the roll towards the second major surface at the proximal end.
  • the second major surface at the proximal end is provided at least in part with a second adhesive and said ends of the male fastening elements are in contact with said second adhesive in the roll, this will further facilitate the stability of the roll, and surprisingly without detrimentally effecting the unwinding of the roll.
  • the force e.g.
  • rolls described herein are favorably free of a release liner between the male fastening elements and the second major surface at the proximal end, and in particular for those embodiments having a second adhesive at the proximal end, are free of a release liner between the male fastening elements and the second adhesive provided on said second major surface at the proximal end.
  • This is particularly advantageous in light of known loop-transfer tapes which commonly employ a release liner in the roll.
  • Rolls are also favorably free of a release liner between the engaging-structure and the second major surface at the distal end, and in particular for those embodiments including a third adhesive at the distal end, are free of a release liner between the engaging structure and the third adhesive provided on said second major surface.
  • an absorbent article in particular a diaper or an incontinence brief, comprising a back sheet, a top sheet and an absorbent core there between and a fastening tab as described herein, wherein the fastening tab is attached to the absorbent article at least its proximal end.
  • fastening tabs may be attached to a rear waist portion or alternatively for absorbent articles comprising an ear or ears, at a distal end portion of the ear(s), more particularly to the inside of the rear waist portion or to the inside of the ear(s), respectively.
  • the fastening tab is folded so that the male fastening elements are releasably engaged with the engaging-structure, more favorably the distal end of the fastening tab is folded onto the proximal end of the fastening tab so that the male fastening elements are releasably engaged with the engaging-structure.
  • the force to detach the adhesive of the patch from the release surface is lower, in particular much lower, than the force to disengage the male fastening elements from the engaging-structure.
  • the adhesive of the patch will detach from the release surface while the male fastening elements of the patch remain releasably engaged with the engaging-structure at the distal end of the tab. Accordingly the patch with its engaged fastening elements is transferred from the proximal end onto the distal end of the fastening tab and additionally the adhesive of the patch is now exposed.
  • the user can then close the absorbent article, e.g. a diaper or an incontinence brief, by pressing the distal end of the fastening tab onto a respective (e.g. appropriate) portion of the absorbent article, so that the adhesive of the patch adheres to the respective portion of the absorbent article.
  • the adhesive of the patch can be adhered e.g. on a front waist portion, in particular on the outside of the front waist portion.
  • the adhesive of the patch with its male fastening elements will be advantageously affixed onto the absorbent article, i.e. onto said respective portion of the absorbent article.
  • the patch has been transferred from the proximal end to the distal end of the fastening tab and subsequently from the distal end of the fastening tab onto the respective portion of the absorbent article.
  • the patch and the fastening tab will favorably function like a regular mechanical-based closure system.
  • the engaging-structure at the distal end of the fastening tab will disengage from the fastening elements of the patch, while the patch remains adhered to the absorbent article.
  • the user may then reclose the absorbent article by pressing the distal end of the fastening tab onto the patch such that the engaging-structure at the distal end of the fastening tab releasably (re-)engages the fastening elements of the patch.
  • FIG. 1 represents a cross-sectional, schematic illustration of an exemplary fastening tab for an absorbent article, in particular a disposable absorbent article, in accordance with the invention described herein.
  • the fastening tab 10 includes a proximal end 12 and an opposite distal end 14 and comprises a backing 30 having a first major surface 31 and a second major surface 32. It will be appreciated that the backing is integral over the proximal and distal ends.
  • the proximal end which could also be termed the manufacturer's end
  • the distal end which could also be termed the user's end
  • the first major surface is provided with a release surface 28, in particular a low adhesion backside coating.
  • the fastening tab also includes a mechanical fastening patch 20, said patch comprising on one side male fastening elements 22 of a mechanical fastening system and on the opposite side an adhesive 24 which is typically provided on a substrate 26, wherein the patch is releasably attached to the release surface via the adhesive.
  • this adhesive is referred to for the most part herein as the first adhesive. It will be appreciated that the entire first major surface in the proximal end may be provided with a release surface as shown in this embodiment, or alternatively just that portion of the first major surface to which the fastening patch is releasably adhered may be provided with a release surface.
  • the first major surface of the distal end has a structure or is provided with a structure that can be releasably engaged by said male fastening elements of the fastening patch, said structure being referred to as the engaging-structure.
  • the first major surface is provided with an engaging-structure 42.
  • a strip 40 including the engaging-structure 42 on a substrate 46 is affixed to the first major surface in the region of the distal end.
  • the engaging-structure may be provided across the whole width of the distal end or alternatively the engaging-structure may only be provided across a portion thereof.
  • the second major surface at the proximal end as well as at the distal end is provided with a second adhesive 51 and a third adhesive 52, respectively for affixing the tab onto an absorbent article.
  • the second and third adhesives are identical whereby the adhesive coating is an integral layer.
  • the entire portion of a respective surface may be provided with the respective adhesive e.g. in the form as a continuous coating, or alternatively just a part thereof may be provided with adhesive, e.g. adhesive may be provided in the form of a pattern coating.
  • Adhesives suitable for use as second and/or third adhesives include pressure sensitive adhesives, more favorably pressure sensitive adhesives based on styrene-isoprene-styrene block copolymer/tackifier mixtures.
  • Second and/or third adhesives may have coating weights in the range of 20 to 50 g/m 2 .
  • second and/or third adhesives may have thicknesses in the range of 20 microns to 100 microns.
  • Second and/or third adhesives may favorably have a 90° peel adhesion to a smooth polyethylene test surface having an average surface roughness value R a of about 1.4 ⁇ m and an average peak to valley height value R z of about 12.5 ⁇ m greater than 5 N/25 mm, in particular equal to or greater than 6 N/25 mm, more particularly equal to or greater than 7 N/25mm e.g. as measured according to FINAT Test Method No.
  • the polyethylene test surface may be provided by adhering (e.g. via double sided tape) an appropriate polyethylene film onto a (e.g. glass or stainless) test plate.
  • a polyethylene film may be obtained as follows: A low density polyethylene resin (such as the low density resin marketed under the trade designation TENITE 1550P by Eastman Chemical Co. Kingsport, Tennessee) having a melt index of 3.5 grams/10 min and a density of 0.918 grams/cm is extruded at a melt temperature of 182°C vertically downward through a conventional coat-hanger slot extrusion die.
  • the melt exiting the die is drawn into a nip formed by a mirror finish chrome roll (8°C inlet water temperature) and a silicone rubber roll (7°C inlet water temperature) resulting in a film of 330 microns thickness, whereby the surface of the film that was in contact with the chrome roll will be that surface of the film that used for testing.
  • Said surface typically has an average surface roughness value R a of 1.4 ⁇ m and an average peak to valley height value R z of about 12.5 ⁇ m as measured using a laser profilometer (e.g. a laser profilometer model number UB-16 available from UBM Messtechnik GmbH, Ettlingen, Germany) and computed in accordance with Deutsche Industrie Norm (DIN) 4768 and DIN 4762.
  • a laser profilometer e.g. a laser profilometer model number UB-16 available from UBM Messtechnik GmbH, Ettlingen, Germany
  • the second major surface at just the proximal end may be provided with an adhesive for affixing the tab onto an absorbent article.
  • an adhesive for affixing the tab onto an absorbent article Such an embodiment in depicted in Figure 3A , where the construction is the same as the embodiment in Figure 1 including a second adhesive 51 on the second major surface 32 at the proximal end 12, but now with no adhesive on the second major surface at the distal end 14.
  • the second major surface at both the proximal and distal ends may be free of adhesive.
  • Figure 4 shows such an exemplary embodiment, where the construction is the same as the embodiment in Figure 1 except no adhesive is provided on the second major surface of the backing.
  • Such tabs may be affixed at least at their proximal ends to absorbent articles through non-adhesive means, such as ultrasonic or hot air bonding, or via adhesive provided onto the tab and/or the absorbent article just at the time of affixing the tab onto the absorbent article.
  • non-adhesive means such as ultrasonic or hot air bonding, or via adhesive provided onto the tab and/or the absorbent article just at the time of affixing the tab onto the absorbent article.
  • FIG 2A provides a further alternative exemplary embodiment in accordance with the invention described herein.
  • This embodiment is similar to that shown in Figure 1 , except for several structure differences.
  • One major difference is that the fastening tab 10 includes two separate backings, one 33 in the proximal end 12 and the other 34 in the distal end 14, each having a first major surface 35,37 and a second major surface 36,38 respectively.
  • the second major surface 36 of the backing 33 at the proximal end 12 is provided with a second adhesive 51, while the second major surface 38 of the backing 34 at the distal end 14 is provided with a third adhesive 52.
  • the second and third adhesives may be identical or different.
  • connection member 60 the connection member bridges across the second and third adhesives.
  • connection member may then be a connection member which bridges across the backings at their second major surface or the distal end backing at its second major surface and the proximal end second adhesive, respectively.
  • Such two-element embodiments, in particular tapes comprising such tabs can be favorable in that they can be created with ease by joining separate "hook” and “loop” tape materials together via an appropriate connection member on the non-fastening sides thereof.
  • the present invention further relates to tapes comprising a plurality of fastening tabs as described herein as well as rolls of tapes comprising a plurality of fastening tabs.
  • An exemplary embodiment of such tape and roll is shown in Figure 2B .
  • Figure 2B provides a schematic perspective view of a fastening tape 80 including fastening tabs of the type shown in Figure 2A .
  • the fastening tabs are arranged in endless form on the tape 80 so that individual tabs can be cut from the fastening tape by cutting the tape across its width.
  • the male fastening elements 22 are not engaged to the engaging-structure 42.
  • the tape is desirably rolled in a flat (e.g. unfolded) un-engaged configuration.
  • the proximal and distal ends 12, 14 of the endless configured fastening tabs are desirably positioned in two outer lateral regions 82, 84 of rolled fastening tape.
  • the ends of the male fastening elements 22 distal to the first adhesive 24 are favorably positioned towards the second major surface 36 at the proximal end 12, and in this particular exemplary embodiment thus in contact with the second adhesive 51.
  • the roll is advantageously free of a release liner between the male fastening elements 22 and the second major surface 36 at the proximal end 12, in particular between the male fastening elements and the second adhesive 51 provided on said second major surface at the proximal end. Also it will be appreciated that the roll is favorably free of a release liner between the engaging-structure 42 and the second major surface 38 at the distal end 14, in particular between the engaging structure and the third adhesive 52 provided on said second major surface.
  • the backing of fastening tabs described herein may be selected from a variety of films or sheetings including single-layered and multi-layered films, co-extended films, laterally laminated films or films comprising film layers.
  • the layers of such films or sheetings may comprise various materials such as, for example, polypropylene, polyvinylchloride, polyethylene terephthalate, polyethylene, polyolefin copolymers or blends of polyolefins such as, for example, a blend of polypropylene, low density polyethylene and/or linear low density polyethylene, textiles, and nonwoven and foamed materials.
  • the backing of fastening tabs described herein may be selected from a variety of fibrous webs, including wovens, knitted webs or nonwovens.
  • the backing may be poly-coated to minimize penetration of adhesive into the backing.
  • Fibrous-web-backings e.g. nonwoven backings
  • Figure 3B illustrates an exemplary embodiment including a fibrous web as a backing.
  • the construction of the exemplary fastening tab 10 is similar to the exemplary embodiment in Figure 3A , where the male fastening elements 22 comprising patch 20 having the same configuration as in Figure 3A is attached onto a release surface 28 provided on the first major surface 31 at the proximal end 12 and where the second major surface 32 at the proximal end is provided with adhesive 51 for affixing the tab onto an absorbent article (second adhesive).
  • the exemplary embodiment of Figure 3B differs from that shown in Figure 3A in that the backing 30 is a fibrous web (e.g. a nonwoven) and thus the major surfaces of the backing have an inherent fibrous structure.
  • the first and second major surfaces (31, 32, respectively) at the distal end 14 of the fastening tab show a fibrous structure.
  • the particular fibrous web backing is advantageously selected such that inherent fibrous structure of at least the surface of the backing subsequently forming the first major surface of the tab can be releasably engaged by the male fastening elements of the patch, so that the inherent fibrous surface structure of the backing 30 forming the first major surface 31 of the distal end 14 of the tab 10 is the engaging structure 42. It will be appreciated that this can be advantageous in that a separate, additional structural element like the strip 40 in Figure 3A including an engaging structure need not be provided.
  • a poly-coat 48 is provided between the second adhesive and the second major surface at the proximal end.
  • the thickness of the backing is favorably between 30 microns and 500 microns, and more favorably between 40 and 150 microns.
  • the basis weight of the backing is favorably between 15 and 500 g/m 2 , more favorably between 20 and 300 g/m 2 and particularly favorably between 20 and 200 g/m 2 . It will be appreciated by the skilled reader that for a particular basis weight, the thickness of a nonwoven backing will generally greater than a film backing. Having regard to the aforesaid favorable basis weights for backings, nonwoven backings most favorably have basis weights between 35 and 85 g/m 2 .
  • thermoplastic resins include polyesters, such as poly (ethylene terephthalate); polyamides, such as nylon; poly (styrene - acrylonitrile); poly (acrylonitrile - butadiene - styrene); polyolefins, such as polypropylene and/or polyethylene; and plasticized polyvinylchloride.
  • the male fastening elements may comprise male fastening elements selected from the group consisting of hook fasteners, mushroom-shaped fasteners, stem-shaped fasteners, cup-shaped fasteners, T-shaped fasteners and mixtures thereof.
  • Male fastening elements usually comprise a stem supported by the exposed major surface of a patch of fastening material and an enlarged section which is positioned at the end of the stem opposite to the exposed major surface.
  • the fastening elements can also be formed by stem having no enlarged section at the end of the stem, wherein such stems are preferably essentially conical, cylindrical or pyramidal.
  • Fastening elements suitable in the present invention can be manufactured from a wide range of materials including thermoplastic polymers such as, for example, nylon, polyester, polyolefins (e.g. polypropylene and/or polyethylene) or any combination of these.
  • the fastening elements preferably comprise the material of which the patch of fastening material is formed.
  • the height of the fastening elements may range from 0.1 to 0.4
  • Engaging-structures suitable in the present invention can be manufactured from a wide range of materials including thermoplastic polymers such as, for example, nylon, polyester, polyolefins (e.g. polypropylene and/or polyethylene) or any combination of these.
  • thermoplastic polymers such as, for example, nylon, polyester, polyolefins (e.g. polypropylene and/or polyethylene) or any combination of these.
  • the proximal and distal ends of the tab are advantageously configured and arranged such that at least a portion of one end (in particular the distal end) can be folded onto the other end (in particular the proximal end) so that said male fastening elements can releasably engage said engaging-structure.
  • the engaging-structure may comprise a structure selected from the group consisting of nonwoven structures, loops (e.g. knitted loops, woven loops, extrusion bonded loops), mushroom-shaped fasteners, cup-shaped fasteners, T-shaped fasteners and mixtures thereof.
  • the fastening tab is configured and arranged, such that the force to disengage the male fastening elements from the engaging-structure is higher than the force to detach the adhesive of the fastening element patch from the release surface.
  • Figures 5 and 6 represent isometric and cross sectional views of an exemplary absorbent article, in particular a disposable absorbent article, more particularly a diaper or an incontinence brief, including two fastening tabs as shown in Figure 1 in exemplary configurations corresponding to a configuration just after attachment of the tabs and a folded configuration for storage and/or packaging, respectively.
  • Figures 12A through 12C represent isometric views of an exemplary absorbent article, in particular a disposable absorbent article, more particularly a diaper or an incontinence brief, including two fastening tabs as shown in either Figure 3A or Figure 4 in configurations corresponding to a configuration just after attachment of the tabs and folded configurations.
  • Figures 5A and B shows an isometric and cross sectional view a diaper or an incontinence brief 100 comprising a back sheet 120, a top sheet 110 and an absorbent core 115 (only visible in Figure 5B ) there between and two fastening tabs 10 of the type shown in Figure 1 .
  • the two fastening tabs 10 are affixed to rear waist portion of the absorbent article, in particular to the inside of the rear waist portion.
  • the diaper or incontinence brief includes two ears 140, where the fastening tabs are affixed to the inside (e.g. to the top sheet) of the ear at at least the distal end portion of the ear.
  • the fastening tabs are affixed across their entire width (i.e. over both the proximal and distal ends 12, 14) onto the top sheet.
  • Figures 5A and B show views of the article for example in a configuration just after attachment of the fastening tabs to the article, whereby the male fastening element 22 comprising patch 20 at the proximal end of the tab is located towards the interior of the article and the engaging-structure 42 comprising strip 40 at the distal end of the tab is located away from the interior of the article.
  • the distal end of each fastening tab is folded onto the proximal end of the fastening tab so that the male fastening elements are releasably engaged with the engaging-structure.
  • FIG. 6A This is for example shown in Figures 6A and B .
  • the ears 140 of the diaper or incontinence brief 100 are folded towards the interior of the article e.g. for storage and/or packaging purposes.
  • the fastening tabs 10 are correspondingly folded so that the male fastening elements 22 of each tab are releasably engaged with the engaging-structure 42.
  • Figures 12A to C show isometric views of a diaper or an incontinence brief 100 comprising a back sheet 120, a top sheet 110 and an absorbent core (not visible; 115) there between and two fastening tabs of the type shown in either Figure 3 or Figure 4 .
  • the diaper or incontinence brief includes two ears 140, where one fastening tab is affixed to the inside (e.g. to the top sheet) of each ear, at least at the distal end portion of the each ear.
  • just the proximal ends 12 of the fastening tabs are affixed to the absorbent article so that the distal ends 14 of the fastening tabs extend beyond the ears of the absorbent article.
  • each fastening tab 10 is folded onto its proximal end (no longer visible, 12) so that the male fastening elements (no longer visible, 22) are releasably engaged with the engaging-structure (no longer visible, 42).
  • the ears 140 of the absorbent article 100 remain extended.
  • the ears of the article are also folded over towards the interior as shown in Figure 12C .
  • Absorbent articles including at least one fastening tab as described herein wherein the distal end of the fastening tab is folded onto the proximal end of the fastening tab so that the male fastening elements are releasably engaged with the engaging-structure are preferred for storage and/or product packaging purposes.
  • an advantageous method of manufacturing such an absorbent article comprises the steps of: a) providing an absorbent article comprising a back sheet, a top sheet, and an absorbent core therebetween; b) providing at least one fastening tab as described herein; c) affixing the at least one fastening tab with at least its proximal end to the absorbent article; and d) folding the distal end of the at least one fastening tab onto the proximal end of the at least one fastening tab so that the male fastening elements are releasably engaged with the engaging-structure.
  • Methods of using such an absorbent article advantageously comprise the steps of: a) unfolding the distal end of the fastening tab so that the adhesive of the patch detaches from the release surface (e.g. low adhesion backside) and the male fastening elements of the patch remain engage with the engaging-structure, and b) closing the absorbent article by pressing the distal end of the fastening tab onto a respective portion of the absorbent article, thereby affixing the adhesive of patch (i.e. the first adhesive) to said respective portion of the absorbent article.
  • This is best understood by making reference to Figures 7 through 9 which provide various views of the exemplary absorbent article shown in Figures 5 and 6 during various stages of use.
  • Figures 7A and B represent isometric and cross sectional views, respectively, of the absorbent article in a configuration upon unfolding. Moreover, it can be seen in comparison to Figures 6A and B that the fastening tabs 10 as well as the ears 140 of the diaper or incontinence brief 100 are unfolded. Furthermore, it can be seen in comparison to Figures 5A and B that the male fastening element comprising patches 20 are now located in the distal ends 14 of the tabs 10.
  • Figures 8A and B represent isometric and cross sectional views, respectively, of the absorbent article in a configuration between unfolding and the first closing of the absorbent article.
  • the ears 140 of the diaper or incontinence brief 100 are shifted towards the front waist portion 130 in order to close the article and fasten the tabs 10 onto the back sheet 120 at that portion.
  • Figure 9A and B represent isometric and cross sectional views, respectively, of the absorbent article in a closed or fastened configuration.
  • the diaper or incontinence brief 100 is closed or fastened by pressing the distal end 14 of each fastening tab 10 onto the front waist portion 130 of the diaper or incontinence brief, thereby affixing the adhesive 24 of fastening element comprising patch 20 to said respective portion (in particular to the back sheet 120 found at that portion) of the diaper or incontinence brief.
  • this closing/fastening can be advantageously achieved without having to provide either a landing zone or a back sheet being made of material suitable to engage the fastening elements of a mechanical fastening tab.
  • the re-opening and re-closing of the absorbent article is advantageously possible.
  • Favorable methods of use comprise the further step of: opening the absorbent article by pulling the distal end of the fastening tab so that the engaging-structure of the fastening tab disengages from the male fastening elements of the patch while the patch remains affixed to respective portion of absorbent article.
  • Such favorable methods of use comprise more favorably the additional step of: re-closing the absorbent article by pressing the distal end of the fastening tab onto the patch so that the engaging-structure of fastening tab releasably engages the fastening elements of the patch.
  • Figures 10 and 11 represent isometric views (A) and cross-sectional views (B), respectively, of the exemplary absorbent article shown in Figures 5 to 9 where the absorbent article is shown in a configuration after opening and after re-closing of the absorbent article, respectively.
  • Figures 10A and B that in order to open the diaper or incontinence brief 100, the distal ends 14 of the tabs 10 are pulled away from the front waist portion 130 so that the engaging-structure 42 of fastening tab disengages from the male fastening elements 22 of the patch 20 while the patch remains affixed to respective portion of diaper on incontinence brief.
EP14176556.0A 2014-07-10 2014-07-10 Befestigungslasche Withdrawn EP2965735A1 (de)

Priority Applications (10)

Application Number Priority Date Filing Date Title
EP14176556.0A EP2965735A1 (de) 2014-07-10 2014-07-10 Befestigungslasche
US15/324,811 US20170196739A1 (en) 2014-07-10 2015-07-09 Fastening tabs
JP2017501019A JP2017525425A (ja) 2014-07-10 2015-07-09 締結タブ
CN201580037314.1A CN106659619B (zh) 2014-07-10 2015-07-09 紧固突片
MYPI2017000036A MY176535A (en) 2014-07-10 2015-07-09 Fastening tabs
PCT/US2015/039669 WO2016007703A1 (en) 2014-07-10 2015-07-09 Fastening tabs
EP15739742.3A EP3166554B1 (de) 2014-07-10 2015-07-09 Befestigungslasche
MX2017000429A MX2017000429A (es) 2014-07-10 2015-07-09 Lengüetas de sujecion.
BR112017000508-5A BR112017000508B1 (pt) 2014-07-10 2015-07-09 Aba de fixação para um artigo absorvente selecionado dentre fraldas e cuecas para incontinência
KR1020177003338A KR102416431B1 (ko) 2014-07-10 2015-07-09 체결 탭

Applications Claiming Priority (1)

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EP14176556.0A EP2965735A1 (de) 2014-07-10 2014-07-10 Befestigungslasche

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EP2965735A1 true EP2965735A1 (de) 2016-01-13

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EP15739742.3A Active EP3166554B1 (de) 2014-07-10 2015-07-09 Befestigungslasche

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EP (2) EP2965735A1 (de)
JP (1) JP2017525425A (de)
KR (1) KR102416431B1 (de)
CN (1) CN106659619B (de)
BR (1) BR112017000508B1 (de)
MX (1) MX2017000429A (de)
MY (1) MY176535A (de)
WO (1) WO2016007703A1 (de)

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EP3409253A1 (de) * 2017-06-01 2018-12-05 3M Innovative Properties Company Befestigungslasche mit anti-markierungsmerkmal
EP3714851A1 (de) * 2019-03-29 2020-09-30 3M Innovative Properties Company Windelverschlusslasche, windel und verfahren zur herstellung davon

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WO2018147347A1 (ja) * 2017-02-10 2018-08-16 クラレファスニング株式会社 固定用ベルト、固定方法及び固定用ベルト用部材
CN112566974B (zh) 2018-08-13 2023-05-23 3M创新有限公司 胶粘剂组合物和制品
CN116172794A (zh) * 2018-08-21 2023-05-30 宝洁公司 包括上面具有一体成型钩连部的非织造基底的紧固系统
JP2020081622A (ja) * 2018-11-29 2020-06-04 スリーエム イノベイティブ プロパティズ カンパニー フックシート、およびシートロール
EP3766468A1 (de) * 2019-07-19 2021-01-20 3M Innovative Properties Company Verschlussbandlasche mit einem inneren laschenabschnitt mit mechanischen befestigungselementen
KR102456971B1 (ko) * 2020-12-28 2022-10-21 주식회사 라크인더스트리 후크 체결기능을 부여한 기저귀용 고중량 캐리어 시트
US20220386746A1 (en) * 2021-06-04 2022-12-08 Yi-Wen Tang Fastening strap

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WO2018220456A1 (en) * 2017-06-01 2018-12-06 3M Innovative Properties Company A fastening tab with anti-flagging feature
EP3714851A1 (de) * 2019-03-29 2020-09-30 3M Innovative Properties Company Windelverschlusslasche, windel und verfahren zur herstellung davon
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Also Published As

Publication number Publication date
US20170196739A1 (en) 2017-07-13
EP3166554B1 (de) 2019-10-02
CN106659619B (zh) 2021-11-05
EP3166554A1 (de) 2017-05-17
BR112017000508B1 (pt) 2022-02-15
WO2016007703A1 (en) 2016-01-14
MX2017000429A (es) 2017-05-01
KR20170032344A (ko) 2017-03-22
JP2017525425A (ja) 2017-09-07
KR102416431B1 (ko) 2022-07-04
MY176535A (en) 2020-08-14
BR112017000508A2 (pt) 2017-11-14
CN106659619A (zh) 2017-05-10

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